Re: [E-devel] enlightenment blanking issue

On 8/12/22 11:02, Carsten Haitzler wrote:
> On Fri, 12 Aug 2022 10:18:32 +0200 [email protected] said:
>
>> On 6/20/22 16:23, Carsten Haitzler wrote:
>>> On Mon, 20 Jun 2022 15:46:15 +0200 [email protected] said:
>>>
>>>> On 6/10/22 10:22, Carsten Haitzler wrote:
>>>>> On Fri, 10 Jun 2022 08:45:44 +0200 [email protected] said:
>>>>>
>>>>>> On 6/9/22 23:53, Carsten Haitzler wrote:
>>>>>>> On Thu, 9 Jun 2022 22:41:08 +0200 [email protected] said:
>>>>>>>
>>>>>>>> On 6/9/22 12:16, Carsten Haitzler wrote:
>>>>>>>>> On Thu, 9 Jun 2022 10:41:25 +0200 [email protected] said:
>>>>>>>>>
>>>>>>>>>> On 6/9/22 09:55, Carsten Haitzler wrote:
>>>>>>>>>>> On Wed, 8 Jun 2022 19:50:27 +0200 [email protected] said:
>>>>>>>>>>>
>>>>>>>>>>>> On 6/8/22 19:17, Carsten Haitzler wrote:
>>>>>>>>>>>>> On Wed, 8 Jun 2022 15:39:17 +0200 [email protected] said:
>>>>>>>>>>>>>
>>>>>>>>>>>>> actually wait - is this a laptop? or using ddc? dimming timeout
>>>>>>>>>>>>> set? then the 30 sec may be the dimming timeout. e will run a
>>>>>>>>>>>>> timer after that that then totally blanks the screen. this timer
>>>>>>>>>>>>> is cancelled when the screensaver is cancelled (when the screen
>>>>>>>>>>>>> dims the screen is basically in screensaver mode)
>>>>>>>>>>>> It's just a laptop
>>>>>>>>>>>
>>>>>>>>>>> ok - that explains the 30 sec then - that's the dimming timeout.
>>>>>>>>>>> does the screen dim automatically after 30 sec of idle input?
>>>>>>>>>> No, screen doesn't dim after 30 sec of idle input.
>>>>>>>>>> Screen blanks after 2 minutes (according to settings), but sometimes,
>>>>>>>>>> maybe once a day, it doesn't blank at all. If i restart e, it blanks
>>>>>>>>>> normally.
>>>>>>>>>
>>>>>>>>> that's odd. screen should dim. you have backlight support? does it
>>>>>>>>> work manually with the gadget?
>>>>>>>>
>>>>>>>> Yes that's odd...I have backlight support and gadget in shelf. See
>>>>>>>> settings in  attached file
>>>>>>>
>>>>>>> so backlight controls work? you can manually change brightness? does the
>>>>>>> backlight dim after 30 sec of no input if you leave things idle? btw
>>>>>>> your normal backlight is 5% .. that's really odd.... it should be
>>>>>>> HIGHER than the dim level of 30%...
>>>>>>
>>>>>> I set backlight higher than dim level, and dim works now.
>>>>>> Maybe this explains why, sometimes, blanking doesn't work, but it
>>>>>> happens randomly...
>>>>>
>>>>> well now you at least have saner backlight settings (these are not
>>>>> defaults
>>>>> - the defaults are 100% and 30% for normal and dim levels). the first
>>>>> thing you should look for is if the screen dims after 30 sec od idle - if
>>>>> it does then screensaver is then activating. e uses the x screensaver
>>>>> notify event fromto dim the backlight (and screensaver deactivate to
>>>>> un-dim (go back to bright)). once idle e runs a timer that then waits for
>>>>> "the rest of the time" until the screen needs to go blank. so if dim
>>>>> timeout is 30 sec, and blanking time is 2 min, then e runs a timer for
>>>>> 1.5min. when this timer is hit then e will "fade to blank" and fade out
>>>>> the rest of the backlight to off too. x's dpms timeouts are set to expire
>>>>> a little bit after this "fade to black" (about 10 seconds after as you
>>>>> can see in xset's dpms settings) so the screen will completely power off
>>>>> then (but will appear black by this point).
>>>>>
>>>>> so the first thing to do is to notice... is the dimming happening? if it
>>>>> is not then there is a problem earlier on with screensaver notify events
>>>>> not happening. that means either the x screensaver has been suspended in
>>>>> some way (it was totally turned off - some apps go mess with screensaver
>>>>> settings - xset q will tell you if screensaver is on or off and the
>>>>> timeout) and some apps may take a screensaver "block" from x and ask it to
>>>>> temporarily suspend the screensaver. chromium and chrome based browsers
>>>>> will do this when playing videos - sometimes ads on a web page can cause
>>>>> this if they play videos. youtube does it... the best way to eliminate
>>>>> this is to close your browser and see if the problem continues. steam
>>>>> will also kill off blanking even if it just runs as a service in the
>>>>> background and no game is running. this s an ongoing issue with sdl/steam
>>>>> actively trying to keep the screen alive. in git i just added support for
>>>>> a dbus service used by some other wm's and de's that does the same as the
>>>>> x screensaver suspend/block feature - but it's asking whoever runs the
>>>>> dbus service to suspend blanking/screensaver - in this case e will
>>>>> advertise this service and it gets the requests. now e knows who asked to
>>>>> block the screensaver and will list who asked in a submenu of the main e
>>>>> menu under "blanking block". some apps will prefer to use this dbus
>>>>> service instead of the x screensaver suspend extension feature, thus it
>>>>> may help identify the problem too. you can remove that blank clock by
>>>>> just selecting it in the menu and e will remove that blocker. like here:
>>>>>
>>>>> http://www.enlightenment.org/ss/e-62a2fefb1df8c2.44000455.png
>>>>
>>>> I use last e and efl git master versions but this function is not
>>>> available for me
>>>
>>> that menu only appears if some application has used the screensaver suspend
>>> dbus api that i added recently to e. if no one used the api then that menu
>>> will not be there. i do see chromium uses it if it is there. if it's not
>>> there 9the dbus api) then browsers seem to use the x screensaver extension
>>> to suspend blanking.
>>>
>> Enlightenment blanking issue appears after watching Twitter video inside
>> Firefox, even after closing Twitter window.
>> But not for all Twitter videos: sometimes blanking works normally,
>> sometimes not...
>
> if e has disabled blanking itself due to a dbus call like above (to inhibit
> blanking) then you will see from 'set q':
>
> Screen Saver:
>    prefer blanking:  yes    allow exposures:  yes
>    timeout:  0    cycle:  0
>
> when blanking is on again you will see:
>
> Screen Saver:
>    prefer blanking:  yes    allow exposures:  yes
>    timeout:  1800    cycle:  0
>
> or some timeout number that is more than 0. if there is anything in in the
> "Blanking Block" submenu of e's main menu - then something has asked to block
> blanking (e.g. your web browser). if there is nothing in that menu then nothing
> has asked to do this. you should see the xset q output show a timeout that is
> more than 0 like above.
>
> remember that ANY x client can change screensver timeout - not just q. so this
> is not a guarantee that e is messing up and not setting this right - some other
> client might. steam certainly likes to play with screensaver timeout.
>
> if the screensaver timeout is more than 0 and the screen doesn't blank, then
> the problem is probably because some client is using the xscreensaver library
> to inhibit suspending. clients do this directly to the xserver. the wm is not
> involved. the only way to release this screensaver inhibiting is for the client
> that requested it to release it OR to kill/close that client. my guess is your
> problem lies with firefox. the best test is - kill/close firefox (actually
> kill/close all x apps/clients other than e) and if the screen starts blanking
> again - then you know your problem is one of these apps/clients. set your
> screen blank timeout to something very short like 0.1 minutes in e and test
> this. that's how i've figured out all the blanking problems and that they are
> all seemingly coming from web browsers these days and them having video content
> (n youtube or even in advertisements and other content you don't realize is a
> video). web browsers only recently started inhibiting screen suspending (in the
> last year or 2 or so). before that the big culprits were steam and games and
> they have their own bugs related to this too.
>

This issue doesn't happen with other wm like e16 or xfce, even if
firefox stays on twitter video.
With these wm, blanking is disabled only if video is playing. If i stop
video, blanking works again.


--
Maderios